WIS2269N8 Просмотр технического описания (PDF) - Shenzhen Winsemi Microelectronics Co., Ltd

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производитель

WIS2269N8

Current Mode PWM Controller

Shenzhen Winsemi Microelectronics Co., Ltd 

GENERAL INFORMATION

Pin Configuration

WIS2269N8

TERMINAL ASSIGNMENTS

Pin Name Pin No. I/O

Description

GND

FB

VI

RI

RT

1

P Ground

Feedback input pin. The input level value and 6-pin to monitor the value of current is

2

I

indeed common set PWM duty cycle control signal. If the FB terminal of the input voltage

is greater than a set set threshold voltage, the internal protection circuit will automatically

turn off PWM output.

Through a high resistance of the resistor connected to the rectifier output, start the device

3

I into the working condition; while the voltage is sampled to generate line voltage

compensation.

4

I

Internal Oscillator frequency setting pin. A resistor connected between RI and GND sets

the PWM frequency.

5

I Temperature monitoring of input pins. By a NTC resistor connected to ground.

SENSE

6

I Current sense input pin. Connected to MOSFET current sensing resistor node.

VDD

GATE

7

P Chip DC power supply pin

8

O Totem-pole gate drive output for the power MOSFET.

BLOCK DIAGRAM

2 /10

Steady, keep you advance

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